/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

/*
 * os_unixx.h -- include files that are only used in os_unix.c
 */

/*
 * Stuff for signals
 */
#if defined(HAVE_SIGSET) && !defined(signal)
#define signal sigset
#endif

/* Sun's sys/ioctl.h redefines symbols from termio world */
#if defined(HAVE_SYS_IOCTL_H) && !defined(SUN_SYSTEM)
#include <sys/ioctl.h>
#endif

#ifndef USE_SYSTEM /* use fork/exec to start the shell */

#if defined(HAVE_SYS_WAIT_H) || defined(HAVE_UNION_WAIT)
#include <sys/wait.h>
#endif

#ifndef WEXITSTATUS
#ifdef HAVE_UNION_WAIT
#define WEXITSTATUS(stat_val) ((stat_val).w_T.w_Retcode)
#else
#define WEXITSTATUS(stat_val) (((stat_val) >> 8) & 0377)
#endif
#endif

#ifndef WIFEXITED
#ifdef HAVE_UNION_WAIT
#define WIFEXITED(stat_val) ((stat_val).w_T.w_Termsig == 0)
#else
#define WIFEXITED(stat_val) (((stat_val)&255) == 0)
#endif
#endif

#endif /* !USE_SYSTEM */

#ifdef HAVE_STROPTS_H
#ifdef sinix
#define buf_T __system_buf_t__
#endif
#include <stropts.h>
#ifdef sinix
#undef buf_T
#endif
#endif

#ifdef HAVE_STRING_H
#include <string.h>
#endif

#ifdef HAVE_SYS_STREAM_H
#include <sys/stream.h>
#endif

#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif

#ifdef HAVE_SYS_SYSTEMINFO_H
/* <sys/systeminfo.h> uses SYS_NMLN but it may not be defined (CrayT3E). */
#ifndef SYS_NMLN
#define SYS_NMLN 32
#endif

#include <sys/systeminfo.h> /* for sysinfo */
#endif

/*
 * We use termios.h if both termios.h and termio.h are available.
 * Termios is supposed to be a superset of termio.h.  Don't include them both,
 * it may give problems on some systems (e.g. hpux).
 * I don't understand why we don't want termios.h for apollo.
 */
#if defined(HAVE_TERMIOS_H) && !defined(apollo)
#include <termios.h>
#else
#ifdef HAVE_TERMIO_H
#include <termio.h>
#else
#ifdef HAVE_SGTTY_H
#include <sgtty.h>
#endif
#endif
#endif

#ifdef HAVE_SYS_PTEM_H
#include <sys/ptem.h> /* must be after termios.h for Sinix */
#ifndef _IO_PTEM_H    /* For UnixWare that should check for _IO_PT_PTEM_H */
#define _IO_PTEM_H
#endif
#endif

/* shared library access */
#if defined(HAVE_DLFCN_H) && defined(USE_DLOPEN)
#if defined(__MVS__) && !defined(__SUSV3)
/* needed to define RTLD_LAZY (Anthony Giorgio) */
#define __SUSV3
#endif
#include <dlfcn.h>
#else
#if defined(HAVE_DL_H) && defined(HAVE_SHL_LOAD)
#include <dl.h>
#endif
#endif
